A sleek white aircraft has become the first independently developed jet to break the sound barrier. The XB-1 aircraft ...

A sleek white aircraft became the first independently developed jet to break the sound barrier Tuesday ... which flew over the Atlantic and was barred from many overland routes because of the ...

First Independently Developed Jet Breaks the Sound Barrier Over the California Desert A sleek ... forming a shock wave “much like a boat creates a wake in water,” according to NASA.